Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 24/21 from 8/12

1st number: 8/12, 2nd number: 1 3/21

8/12 - 24/21 is -10/21.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 21 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 12 × 7 = 84,
    8/12 = 8 × 7/12 × 7 = 56/84
  3. Likewise, for the 2nd fraction, since 21 × 4 = 84,
    24/21 = 24 × 4/21 × 4 = 96/84
  4. Subtract the two like fractions:
    56/84 - 96/84 = 56 - 96/84 = -40/84
  5. After reducing the fraction, the answer is -10/21

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related:

© everydaycalculation.com